Adding machine



H. LANDSIEDEI..

ADDING MACHINE.

APPLICATION flLEn ri. 2, |920.

1,416,864. Patented May 16, 1922.

3 SHEETS-SHEET l.

III

w/mgm INI/Enron. Sj my HARRY HNOS/EDEL,

l Br

l /f/s ,4 onwel/S.

H. LANDSIEDEL.

ADDING MACHINE= APPLICAUGN msn ri.v z. 1920.

1,416,364. Patented May16,192z.

3 SHEETS-SHEET 2.

WITNESS. INVENTOR.

HHH/PY HNOS/EDEL,

H. LANDSIEDEL.

ADDING MACHINE.

Armcmon mso ma.2.192o.

Patented May 16, 1922.

Br @VZ mom/ZS. I'

WITNESS.

UNITED STATES PATENT OFFICE.

HARRY LANDSIEDEL, 0F NORWOOD. OHIO, ASSIGNOR T0 THEJDALTON A DDINGHLACHIN'E COMPANY, 0F CINCINNATI, OHIO. A CORPORATION OF OHIO.

ADDDTG MACHINE.

Application tiled February 2, 1920.

T o all whom. it may concern.'

Be it known that I, Hanni L txnsiitnam a citizen of the United States,residing at Norwood, Hamilton County, and `State of Ohio, have inventeda new and useful Adding Machine, of which the following is aspecification.

This invention relates to adding machines.

An object of the invention is to equip an adding machine with novelmechanism for indicating visually the simi or total contained orrepresented in the adding mechanism.

Anadditional object of the invention is to provide mechanism forindicating visuall),r the sum or total contained or represented in theadding mechanism of the ma- -chine and novel controlling and actuatingdevices for sa'id mechanism, said controlling and actuating devicesbeing under control of the usual addino' mechanism.

'ith the foregoing and other objects in view. I have produced 4myinvention in the embodiment illustrated in the drawings. in which- Fig.1 is a side elevation of parts ot" the operative mechanism of a Daltonadding machine..certain of the shaft and frame parts being shown insection. and my present invention being embodied in the machine.

Fig. 2 is a. plan view of a part of the operative mechanism of themachine having my present invention th`erein.

Fig. 3 is a broken plan of a part of the accumulating and indicatingmechanism dctached from the machine.

Fig. 4 is a side elevation of the same mechanism shown in Fig. 3 withthe indicating mechanism in its normal or idle position.

Fig. 5 is a view similar to Fig. -t with the indicating device shown inan advanced position corresponding to the position of the addingmechanism.

Fig. G is a detailed view showing the device under control of the addingmechanism for actuating the indicating devices.

In order to make clear the nature and purpose of the present invention`'I will first refer to the general construction of the Dal- (on addingmachine in which` for purposes of illustration. I have shown theinvention. The Dalton adding machine contains a rock shaft 1 which maybe turned in one direction Specication of Letters Patent.

Patented )lay 16, 1922.

Serial No. 355,751.

by a hand lever 2, or otherwise` to permit the type-carriers 3 to movetoward recording position Iand to permitV the racks -L to move toposition to operate the adding mechanism in case'an item is beingrecorded. or to actuate the adding mechanism in clearin'r operations.The usual differential meclui nlsni 5 of the Dalton adding machine isshown. i

The present invention comprises a pivotally supported frame forsupporting the adding mechanism comprising the usual addingfwheels. andthe indicating mcchamsm comprising the present invention. The pivotedframe mentioned is composed of two side members G. a pair of plates Tnear the lower side of the frame. and a tie rod S at. the top of theframe which also constitutes the pivot upon which the frame issupported. Said rod 8 is supported in the stationary frame parts 9.

The adding Vpinions ltl are of the usual u'cll knownconstriiction foundin the Dalton adding machine and are supported for independent rotationupon a shaft 11 carried bv the pivoted frame above described. The addingpinions 10 are movable into and out of mesh with the actuating racks 4bv mechanism of :in v desired construction. one form of which mechanismis shown in Fig. l biit vnot speciticall)v claimed as a part of thepresent invention. For present purposes, it is sutl'icient to know thatin operating the machine to list and to add items thcipivoted frameabove described is automatically moved in a direction to disengage theadding pinious l0 from the actuating racks 4 prior to forward movementof the racks which accompany the type-carriers in their forwardmovements to positions to list thc items: and to know that the pivotedframe is automatically operated to move the adding pinions intoengagement with the racks l prior to movement of said racks toward theirinitial or starting position. Carrying or transferring from lower tohigher orders is cti'ected by the usual transfer mechauism of the Daltonadding machine. it heing unnecessary to illustrate or to describe saidmechanism herein. lt is wel] known that the adding pinions in the Daltonniachine and in certain other adding machines arc buried within themechanism of thc machines so that it is impracticablc to placeindicating dials on the same shaft with the adding pinions to indicatethe sum or total contained or represented in the pinions. While the sumor total contained or represented in the adding machine may readily beascertained at any time, Without clearing the machine, simply by listinga subtotal, it is nevertheless desirable on some occasions to beinformed of the sum or total in the adding pinions without the necessityof being compelled to list a subtotal. It is for the purpose of enablingtheoperator of the mac ine to know at any and all times the exact sum ortotal contained or represented in the adding pinions, that the presentinvention is provided.

A shaft 12 is supported by the side members 6 of the pivoted frame nearthe forward end of the frame and supports a number of inde ndentlymovable dial segments 13. The dial segments 13 have type upon theirperipheral edges which indicate to the operator the sum or 'totalcontained or represented in the adding pinions by being placed oppositethe sight slot 14 in the case ofthe machine just above thekey board andthe sight slot 15 through the shield 16, the shield covering all of thetype except the particular type which are in line with the sight slots14 and 15. Therefore, it is impossible for the operator to becomeoonfused, since only the type which are 'in line with the sight slotscan be seen. When the machine is clear all of the zero type on theindicators are op site the sightslots and this condition only) chan asthe adding pinions corresponding to t e respective iudicators areoperated. The indicators are op-A erated in harmony and in accompanimentwith the adding inions to indicate accurately and imme iately the sum ortotal contained or represented in the adding pinions. A series ofpinions 17 is supported upon a shaft 18 carried by the ivoted frame. Thepinions 17 mesh with t ie adding pinions and are rotated thereby. Eachpinion 17 is equipped with a cant 19 which rises gradually from itslowest int in radial alinement with the tooth o the pinion correspondingto the zero tooth of the add ing pinion to the highest point whichcorresponds with the nine tooth on the adding pinion. Since the zerotooth is the next one to the nine tooth there is a sudden drop from thehighest point of theA cam t0 the lowest point, as will be readilyunderstood by reference to Fig. 6. The rise of-the cam corresponds tothe different values of the teeth on the pinion, so thatf the surface ofthe cam in radial alinement with the one tooth, for instance, may besaid to have a value of one; and the surfaces on the cam in radialalinement with the remaining teeth have values corresponding to saidteeth respectively.

Rack members 2O are operatively supported by the plates `7. The rearends of the rack members Contact with the cams 1t) so that, when saidcams are turned by the operation of the pinins to whichA they areattached, the rack 'members 20 are actuated forwardly in opposition tothe power of springs 21 which-*tend to actuate the rack membersrearwardly. The racks at the forward ends of the rack members mesh withsegmental gears or inions 22 formed on the hubs of the indicating dials13.

It is apparent that by the mechanism described the iridicating dialswill be operated coordinately with the adding pinions to bring oppositethe sight slots 14 and 15 type to indicate the sum or total contained orrepresented in the adding inions. When the machine is cleared, or w enany adding pinions turns from any position of the value topositionindicating zero the corresponding dial will be operated accordingly, dueto the lfact that when the highest point on the cam 19 passes the end ofthe rack member 2'.) the latter will be moved rearwardly by its sprin21, thus correspondingly moving the indicating dial.

From the foregoing it is apparent that the invention very satisfactorilyaccomplishes its purpose. The invention is of a simple and eicientnature and construction and does not require complete re-organization ofan adding machine in order to permit use of the invention.

I do not restrict myself to unessential features but whatI claim anddesire to secure by Letters Patent, is:--

1. In an addin machine, adding racks, a pivoted frame, a ding pinionssupported in said frame and being movable into and out of mesh with saidracks, cam pinions supported in said frame in mesh with said addingpinions, indicating devices in said frame for indicating the sumrepresented by the adding pinions, and elements operated .by said campinions for moving said indicating devices.

2. In an adding machine, a pivoted frame, adding pinions supported insaid frame, racks for operating said adding pinions, separate rackmembers supported in said frame, means actuated by said adding inionsfor moving said separate rack mem rs in one direction, and indicatingdevices operated by said separate rack members.

3. In an adding machine, a case enclosing all of the parts mentioned inthis claim and having a sight opening, a swinging frame, adding pinionssupported within the frame, racks supported within the frame forbackward and forward movement, indicating dials supported within theframe for movement thereby adjacent to the sight opening in the case,means driven by said adding pinions for moving said racks in onedirection, independent means for moving said racks in the oppositedirection, a separate series of racks supported outside of said framefor actuating said adding inions in adding and transferring operations,and means for moving said frame to move said adding pinions into and outof engagement with said actuating racks and to move said indicatingdials to position adjacent to said sight opening.

4. In an adding machine,- the combination.

witha series of adding pinions, and a series of racks for actuating saidadding pinions in adding and clearing operations, of a series ofindicating dials which dials correspond to said adding pinionsrespectively, a shaft on which said dials are pivotally' supported aseries of cam pinions meshing with'sai adding pinions, a shaft on whichsaid Vcam pinions are revolubly mounted, cams in connection with sa'idcam inions respectively, racks under controllo said cams, means wherebysaid second-named racks will actuate said indicating dials inconformitywith the movements of said adding pinions to indicate the sum or totalcontained or represented in said adding pinions, rand means for movingsaid dials to' and Vfrom position for observation. y n

5. In an adding machine, the combination with a series ofadding'pinions, aseries of i sum or total represented in said addingracks for operatingsaid pinionsjn ad and in clearing operations, :indiapvo frame for moving said addinglbfinions into and out of engagementwithffai racka,i.of a shaft supported in said pivoted' framefpai alle]with the axisof sa'L din.- pinions, a series of cam pinions on dsh tmeshing with and operated bysii .adding nions, an additional shaftinsaid- -p'ivte `frame parallel with Vsaid 'rstmained shaft, a series ofindicating Adials ivote'd on said additional shaft, gear eements inconnection with said dials respectively, racks meshing with said' gearelements, and cams in connection with said cam pinions for actuatingsaid racks in one direction.

6. In an adding machine, the combination with a series of actuatingracks, a' pivoted frame, a shaft supported in said frame, and a seriesof adding pinions mounted on said shaft'and movable into and out ofengagement with said racks by operation of said frame, a second shaft insaid frame 4parallel with the hist-named shaft, a -series of pinions onsaid second shaft meshing with said adding pinions, a third shaft,indicating dials pivoted on said third shaft, and means operated in partby said,secondnamed pinions for operating said dials to indicate the sumor total represented by said adding pinions.

7. In an adding machine, a series of adding pinions, pivoted racks foroperating said pinions in adding and clearing operations,

a shaft parallel with the axis of said adding pinions, cam pinionsmounted on said shaft and meshing with said adding pinions, cams inconnection with said cam pinions respectively, sliding racks separatefrom the pivoted racks, actuators for actuating said s1iding racks inone direction into contact with said cams, a series of indicating dialsoperable by said sliding racks in harmony with the movement of theadding pinions to indicate the sum or total contained or represented inthe adding pinions, and means for moving said adding pinions out ofengagement with said pivoted racks and at the same time moving saiddials to positions for observation. Y

' "8. In an adding machine, a series of adding pinions, pivoted racksfor operating said pinions in adding and clearing operations, ashaft,parallel with the axis of said adding pinions, cam pinions mountedon said shaft and meshing with said adding pinions, cams in connectionwith said cam pinions respectively, sliding racks separate from thepivoted racks, actuators for actuating said sliding racks in onedirection into contact with said cams, a third shaft, a series of dialspivoted on said third shaft, and gear elements connecting said dialswith said sliding racks respectively, whereby said dials will beoperated by said sliding racks to indicate the pinions. V1

9. In an adding machine, a series of adding pinions, pivoted racks foroperating said Apinions in adding and clearinor operations,

supports, sliding racks mounted in said supports, ashaft parallel withthe axis of said adding pinions, indicating dials pivoted on said'shaft,gear elements in connection with said'dials respectively engaging saidracks, and mechanism actuated by said adding pinions forv actuating saidracks in harmony with the" value positions of said adding pinions asrequired to cause said racks to actuate said indicating dials topositions to indicate the number or sum represented in Said addingiinions.

10. In an a dine machine, a series of adding pinions, a shaft parallelwith the axis of said adding pinions. cam pinions on said shaft meshingwith said adding pinions, cams in connection with said cam pinionsrespectively, supports, sliding racks carried by said supports, springsfor iolding said racks respectively in contact with said cams, a secondshaft, gear elements on said second shaft meshing;l with said racksrespectively, and indicating dials in connection with said gear elementsrespectively.

l1. ln an adding machine, a series of adding pinions 4hidden in themechanism of the machine and being substantially invisible, a series ofindicating dials su )ported in sight of the operator of the machine, ashaft parallel `with the axis of the adding pinions, a independent meansfor moving said racks series of cam pinions on said shaft meshing withand operated by the adding pinions, a cam in connection with each ofsaid cam pinions, a support, sliding racks carried by said support,springs actuating said racks into contact with said cams and arranged toyield to permit said cams to actuate said racks in one direction andarranged to move said'racks-in the op osite directions, and operativeconnections tween said racks respectively and said indicating dialswhereby said dials are o erated properly to indicate the sum or total)represented in said adding pinions.

1'2. In an adding machine, a movable frame, a shaft in said frame addingpinions on said shaft, a second shaft in said frame parallel with theadding pinion shaft, cam pinions on said second shaft meshing with theadding inions', a cam in connection with each 0f sai cam pinions, asupport in said frame, racks carried by said sup ort, springs holdingsaid racks in lpositions fliir operation by said cams res ectlvely, athird shaft in said frame paral el with said other shafts, indicatingdials pivoted on "said third shaft. and a ear in connection `with* eachindicating dia and meshing with the corresponding rack.

13. In an adding machine, a case having a sight slot therethrough 4ashaft, a series of indicating dials pivoted on said shaft, a movableframe for moving said dials toward and away from said si ht slot, addingpinions supported in said rame, racks su ported in said frame foroperating said'dials, mechanism operated by said adding pinions formoving said racks in one direction, and

in the opposite direction.

14. In an adding machine, a series of adding pinions, mechanism foractuating said pinions in adding and clearing operations, a shaftparallel with the axis of said pinions, a series of indicatin dialspivoted on said shaft, a series of sli ing racks for operating saiddials, means operated by said adding pinions for moving said racks inone direction, and independent means for moving said racks in the oposite direction.

15. In an ad ing machine, adding pinions, a shaft on which said pinionsare operatively supported, a second shaft parallel with said first-namedshaft cam pinions operatively supported on said second-named shaft andmeshing with said adding pinions, a cam in connection with each of saidcam pinions, supports, racks mounted on said supports, springs actuatingsaid' racks in one direction into contact with said cams, a third shaft,indicators pivoted on said third shaft, and gears in connection withsaid indicators meshing with said racks.

16. In an adding machine, a seriesof adding pinions, mechanism foractuating said pinions in adding and clearing operations, a shaft onwhich said pinions are operativel mounted, an additional shaft parallelwit Q the adding pinion shaft, indicator dials pivoted on saidadditional shaft, sliding racks for operating said indicator dials,means under control ofsaid adding inions for controlling said dials, anda s ield 'having a slot therein throu h which alined numerals on saiddials maye seen by the operator.

HARRY LANDSIEDEL.

